Roofing material



Jan. 31, 192s. 1,657,979

F. W. THOMAS aoomNG MATERIAL Fild Nov. 7, 1927 Patented dan, 3l, IQS.

Lettere PATENT OFFICE.

FREDERICK `VV'IILLIAIlllI THOMAS, OF NEIVPORT, MONMOU'II-, WALES.

Roorrner MATERIAL.

Application filed Noveinlier 7, 1927, Serial Ito. 231,747, and in Great Britain May 3, 1926.

` This invention relates to rooting materials (by which meant materials suitablefor rooting or for walls or for other situations or parts of structures required to be protected from the weather) and has for one of its objects to provide improved materials of this character which will be more durable than those hitherto adopted while being in general suficiently rigid to .be self-supporting thus eliminating necessity for any wooden or other under layer forsupporting the same.

Further objects and features of the invention will be apparent from the following description taken in conjunction with the accompanying drawings, the invention being more particularly indicated in the appended claims.

Figure l shows Vdiagrammatically one method of forming my improved rooling material;

Figure 2 shows a modification;

Figure 3 shows a modification in section of a piece of felt ready for forming, by one method, my improved rooting material.

In the various drawings like references denote like parts. y

In carrying my invention into elfect in one convenient manner I take one or more layers of roofing felt or like flexible waterproofing material and withsuch I incorporate one or more layers ofthin metal sheeting, wire-netting or mesh or like thin metal reinforcement, the incorporation or binding together of lthe various layers being elfected by a pressing or rolling operation or by other suitable means. Thus I may, for example, take two rolls l and 2 of rooting felt 3 and between the layers of roofing felt I insert a strengthening or reinforcing layer of wire mesh or netting a and these three layers I pass through a press 5 (Figure l) or rolling mill (i (Figure 2), thus causing the lengths or sheets to be firmly united together and so :incorporating the strengthening or reinforcing layer which will `be firmly and solidly embedded into and between the two outer layers of roofing felt. The result will be the production of an exceedingly durable rooling material which if a sufficiently substantial reinforcement be employed will be entirely self-supporting so that it may be applied for rooting purposes and for walls or partitions without any underneath wooden layer or other support and which will not be liable to damage during the operation of nailing or otherwise securing in position.

According to one method, for example asr illustrated in Figures l and 2, I may form theV wire-netting or mesh with the wires, pins or like fastening devices twisted around the strands of the netting and passed through the twists forming the mesh so that they project at right angles to the general plane of the netting on each side thereof, such projecting parts of the various pins or the like being conveniently somewhat longer than the thickness of a layer of roofing felt, the arrangement being such that when such layer of netting is incorporated between two layers of roofing material the pins or wires will by the act of pressing, rolling or otherwise binding the layers together be made to pierce through the layers of roofing felt and will then be turned down and rolled or pressed into the outer surface of the roofing felt layers, as shown ony the right of Figures l and 2, so as to act after the manner of Staples and clinch the wholeof the layers firmly together.

In some cases I may incorporate my layers by rolling, pressing or yotherwise and then further secure them by means of a wire stitching and clinching machine.

In some cases also I may press or roll the length of wire-netting into one side of a layer of roofing felt or like material or I may incorporate the wire-netting during the process of manufacture of the rooting material and I may vary the number of layers of rooting material and of reinforcement employed therewith fdepending upon the purpose for which the material is required. For instance, I may use three layers of felt 3 and two layers of wire t, as shown in Figure Moreover, in place of using the wire `mesh or nett-ing hereiubefore referred-to I may employ very thin sheet steel for which purpose the thin steel sheets termed rejects which are scrapped during the process of steelsheet rolling in rolling mills are found very suitable.

Having now described my invention, what I claim as new and desire to secure by Letters Patent is l. Roofing material comprising separate plies of sheetsA 0f 'flexible water-proof material, an intermediate layer of wire mesh fabric, and means passing through the va- 'ill lia'

rions plies of the sheet material, secured to the Wire mesh faloricv for securing' all the plies together, said securing means consisting of lengths of Wire twisted aroundV the strands of the Wire mesh fabric, passed in opposite directions through adjacent plies of the sheet material and having theirends hent against the outside of the outside plies.

2. Roofing material Comprising a plurality of separate plies ofv sheets of {i'exible waterfproof material and Wire mesh fabric arranged inA alternate layers Witheertain or said plies of Waterproof n'iaterial forming the outside layers and means through the various plies of the sheet material secured to the Wire mesh fabric for securing the plies together` said securing means Comprising` lengths of Wire twisted around the strands of the wire mesh fabric, passed in opposite directions through adjacent plies of the sheet material and having their ends bent against the outside of the outside plies.

In testimo'nT whereof I have signed my name to this specification.

FREDERCK lVILLIAM THOMAS.

passing- 

